NS_IMETHODIMP
nsDownloader::OnStartRequest(nsIRequest *request, nsISupports *ctxt)
{
nsresult rv;
if (!mLocation) {
nsCOMPtr<nsIFile> location;
rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(location));
if (NS_FAILED(rv)) return rv;
char buf[13];
NS_MakeRandomString(buf, 8);
memcpy(buf+8, ".tmp", 5);
rv = location->AppendNative(nsDependentCString(buf, 12));
if (NS_FAILED(rv)) return rv;
rv = location->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 0600);
if (NS_FAILED(rv)) return rv;
location.swap(mLocation);
mLocationIsTemp = true;
}
rv = NS_NewLocalFileOutputStream(getter_AddRefs(mSink), mLocation);
if (NS_FAILED(rv)) return rv;
// we could wrap this output stream with a buffered output stream,
// but it shouldn't be necessary since we will be writing large
// chunks given to us via OnDataAvailable.
return NS_OK;
}
NS_IMETHODIMP
nsDownloader::OnStartRequest(nsIRequest *request, nsISupports *ctxt)
{
nsresult rv = NS_ERROR_FAILURE;
if (!mLocation) {
nsCOMPtr<nsICachingChannel> caching = do_QueryInterface(request, &rv);
if (NS_SUCCEEDED(rv))
rv = caching->SetCacheAsFile(true);
}
if (NS_FAILED(rv)) {
// OK, we will need to stream the data to disk ourselves. Make
// sure mLocation exists.
if (!mLocation) {
rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(mLocation));
if (NS_FAILED(rv)) return rv;
char buf[13];
NS_MakeRandomString(buf, 8);
memcpy(buf+8, ".tmp", 5);
rv = mLocation->AppendNative(nsDependentCString(buf, 12));
if (NS_FAILED(rv)) return rv;
rv = mLocation->CreateUnique(nsIFile::NORMAL_FILE_TYPE, 0600);
if (NS_FAILED(rv)) return rv;
mLocationIsTemp = true;
}
rv = NS_NewLocalFileOutputStream(getter_AddRefs(mSink), mLocation);
if (NS_FAILED(rv)) return rv;
// we could wrap this output stream with a buffered output stream,
// but it shouldn't be necessary since we will be writing large
// chunks given to us via OnDataAvailable.
}
return rv;
}
